News & Insights
Cowan, Liebowitz & Latman Once Again Wins the Managing IP Award for U.S. Trademark Prosecution Firm of the Year
Cowan, Liebowitz & Latman is Hosting a CLE About Recent Copyright Developments for In-House Counsel
Dasha Chestukhin to Speak on Fashion Law Panels at NYU and Rutgers
The 2026 Edition is Available of A Trademark is Not a Copyright or a Patent by William M. Borchard with Deborah K. Squiers

Case Studies
Federal Circuit upholds successful opposition against application to register LEHMAN BROTHERS for whiskey
We established that cigarette rolling paper size designations are generic.
The Second Circuit affirms summary judgment for our client.
Federal Circuit reverses cancellation of U.S. trademark registrations
We succesfully represented our client, Major League Baseball Partners, Inc.
What They Say
"The trade mark team at Cowan Liebowitz is fantastic to deal with - with heaps of experience and expertise, they know exactly how to deliver client-friendly advice."
2025 Legal 500“[Kieran] Doyle is trusted by Fortune 500 retail group Qurate Retail on all prosecution and enforcement programs across the world.”
2026 WTR 1000 – The World’s Leading Trademark Professionals"The team takes a distinctive and innovative approach to resolving client issues."
2025 Legal 500"Kieran G. Doyle is a well-known name in the intellectual property market who regularly advises leading brands on the full remit of trademark issues, and draws the praise of peers and clients for his 'high standard of service'."
2025 Lexology Index"Cowan, Liebowitz & Latman offers top-notch service at fair rates."
Chambers USA 2025
Why Us
Founded in 1957, we maintain long-term relationships by providing sound advice, quality legal work, and highly-responsive, personalized service.
What We Do
We represent clients of all sizes across a broad range of industries. The boutique size of our firm, and the breadth of our practice capabilities, allow us to provide a multidisciplinary approach in a cost-effective manner.
Our Clients
Our experience spans a broad range of industries and is international in scope. We appreciate the opportunity of growing with successful companies and brands, as well as creative individuals and accomplished executives.









